金属热处理 ›› 2021, Vol. 46 ›› Issue (10): 173-177.DOI: 10.13251/j.issn.0254-6051.2021.10.030

• 工艺研究 • 上一篇    下一篇

高温退火二次升温阶段的工艺参数对HiB钢底层形成的影响

许平三1, 郭悦1, 戴方钦1, 曾曦灿2, 胡守天3, 刘敏3   

  1. 1.武汉科技大学 材料与冶金学院, 湖北 武汉 430081;
    2.中冶南方武钢设计院, 湖北 武汉 430081;
    3.宝武集团, 湖北 武汉 430081
  • 收稿日期:2021-04-17 出版日期:2021-10-25 发布日期:2021-12-08
  • 通讯作者: 郭 悦,讲师,博士,E-mail:guoyue@wust.edu.cn
  • 作者简介:许平三(1996—),男,硕士研究生,主要研究方向为高温退火工艺对硅酸镁底层形成的影响,E-mail:2464192713@qq.com

Effect of parameter in secondary heating stage of high temperature annealing process on formation of bottom layer on HiB steel

Xu Pingsan1, Guo Yue1, Dai Fangqin1, Zeng Xican2, Hu Shoutian3, Liu Min3   

  1. 1. School of Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan Hubei 430081, China;
    2. China Metallurgical South Wuhan Steel Design Institute, Wuhan Hubei 430081, China;
    3. Bao Wu Group, Wuhan Hubei 430081, China
  • Received:2021-04-17 Online:2021-10-25 Published:2021-12-08

摘要: 研究了高温退火二次升温阶段的退火温度及露点温度对HiB取向硅钢表面硅酸镁底层的影响。结果表明,高温退火二次升温阶段的最终温度在1100~1170 ℃范围内时生成的硅酸镁底层质量较好;当退火气氛中存在水蒸气时,会降低硅酸镁底层的质量,且水蒸气含量越高,即露点温度越高,硅酸镁底层的厚度越薄,质量越差。

关键词: 硅酸镁底层, HiB钢, 高温退火工艺, 退火参数

Abstract: Effects of annealing temperature and dew point temperature in the secondary heating stage of high temperature annealing process on formation of magnesium silicate on surface of the HiB oriented silicon steel were studied. The results show that the quality of the forsterite film is better when the final temperature of the secondary heating stage of high temperature annealing is in the range of 1100-1170 ℃, but when water vapor remains in the annealing atmosphere during the secondary heating stage of the high temperature annealing, the quality of the forsterite film on the surface of the HiB oriented silicon steel is poor, and the higher the water vapor content is (meaning the higher the dew point temperature is), the thinner the thickness of the forsterite film, and the worse the quality of the forsterite film is.

Key words: forsterite film, HiB steel, high temperature annealing process, annealing parameter

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